US20090273508A1 - Multi-beam radar sensor - Google Patents

Multi-beam radar sensor Download PDF

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US20090273508A1
US20090273508A1 US12/384,873 US38487309A US2009273508A1 US 20090273508 A1 US20090273508 A1 US 20090273508A1 US 38487309 A US38487309 A US 38487309A US 2009273508 A1 US2009273508 A1 US 2009273508A1
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lens
radar sensor
antenna elements
focusing lens
preliminary focusing
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US12/384,873
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US7961140B2 (en
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Thomas Binzer
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Robert Bosch GmbH
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/2658—Phased-array fed focussing structure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/42—Simultaneous measurement of distance and other co-ordinates
    • G01S13/424—Stacked beam radar
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/06—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens
    • H01Q19/062—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens for focusing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/002—Antennas or antenna systems providing at least two radiating patterns providing at least two patterns of different beamwidth; Variable beamwidth antennas

Definitions

  • the present invention relates to a multi-beam radar sensor having a plurality of antenna elements situated next to each other, a collective lens disposed with distance in front of the antenna element, and an additional preliminary focusing lens, and the present invention also relates to a radar sensor having angular resolution for use in motor vehicles.
  • the radar radiation emitted or received by the plurality of antenna elements disposed next to each other passes through the collective lens shared by all antenna elements and is bundled in this manner. However, because of the offset of the individual antenna elements in the lateral direction, the radar beams generated and/or received thereby are likewise angularly offset with respect to each other. If a reflective radar object is hit by multiple beams, then it is possible to determine, or at least estimate, the azimuth angle of the radar object on the basis of the amplitude and/or phase relation between the signals received by the various antenna elements.
  • the transmission characteristic of such a multi-beam radar sensor is a function of the geometry of the individual antenna elements and the optical characteristics of the collective lens, but is also affected by interference effects between the signals emitted by the different antenna elements.
  • a radar sensor of the type mentioned in the introduction in which a preliminary focusing lens is disposed in relatively close proximity in front of the antenna element(s).
  • This preliminary focusing lens is dimensioned such that all of the radar radiation that also passes through the actual collective lens traverses it.
  • the preliminary focusing lens is provided to enable a more compact design of the radar sensor.
  • this object is achieved in that, in a multi-beam radar sensor of the type described in the introduction, the preliminary focusing lens is disposed in such a way that it affects only a portion of the radiation transmitted and/or received by the antenna elements.
  • the preliminary focusing lens has the effect that a portion of the beams emitted by the four antenna elements is focused before striking the main lens.
  • the principal maximum in the azimuth diagram has a width of only approximately 20° (zero positions at ⁇ 10°), so that greater variance and thus reduced precision results in the angle estimation at azimuth angles in the vicinity of ⁇ 10°.
  • the first zero positions are shifted outwardly to a considerable extent, i.e., to higher angles, thereby allowing the determination of the azimuth angle with a significantly lower variance.
  • the preliminary focusing lens may advantageously be disposed directly on the inner surface of the collective lens, e.g., a plano-convex lens. This allows a simple and cost-effective production.
  • the preliminary focusing lens may be designed as vertically oriented cylindrical lens.
  • FIG. 1 shows a schematic representation of a radar sensor according to the present invention.
  • FIG. 2 shows the radar sensor according to FIG. 1 in a schematic side view.
  • FIG. 3 shows an azimuth transmission diagram of the radar sensor according to the present invention.
  • FIG. 4 shows an elevation transmission diagram of the radar sensor.
  • FIG. 5 shows an azimuth receiving diagram for one of the beams of the radar sensor according to FIG. 1 .
  • the radar sensor shown in FIG. 1 has four antenna elements (patches) 12 , 14 , 16 , 18 mounted on a shared mounting plate 10 .
  • a collective lens 20 such as an aplanatic plano-convex lens whose planar side faces mounting place 10 , collective lens 20 having a refractive effect for radar radiation.
  • the radiation emitted by all four antenna elements passes through collective lens 20 and is focused by it.
  • each antenna element 12 acts both as transmit antenna and as receiving antenna.
  • the radiation reflected by a radar sensor which radiation was emitted by a specific antenna element, is also refocused by collective lens 20 in the direction of the particular antenna element, where it is received.
  • antenna elements 12 , 14 , 16 , 18 are uniformly offset with respect to each other in the horizontal direction, their principal radiation and sensitivity directions are angularly offset with respect to each other.
  • the principal radiation and sensitivity direction of antenna element 14 in FIG. 1 is indicated by a straight line A, which passes through antenna element 14 and through the center of collective lens 20 . It can be seen that straight line A forms a specific angle with the optical axis of collective lens 20 . This applies analogously to the other antenna elements as well.
  • the angular range that is spanned by collective lens 20 is marked by two straight lines a 1 .
  • the radiation emitted into this angular range therefore passes through collective lens 20 and is focused by it.
  • a plano-convex preliminary focusing lens (cylindrical lens) 22 is fixed in place on the planar inner side of collective lens 20 or is integrally formed with collective lens 20 .
  • This preliminary focusing lens 22 has a vertical orientation so that its profile is visible in the plan view of FIG. 1 .
  • the width of cylindrical lens 22 is considerably smaller than the diameter of collective lens 20 , in particular less than one half of this diameter.
  • Lines a 2 mark an angular range for antenna element 14 spanned by preliminary focusing lens 22 .
  • This angular range is considerably smaller and lies completely within the angular range spanned by collective lens 20 .
  • the height of preliminary focusing lens 22 in the vertical direction is also considerably smaller than the diameter of collective lens 20 , in particular less than one half of this diameter.
  • Preliminary focusing lens 22 causes preliminary focusing of the radar beams for each antenna element 12 through 18 , for the particular central angular range a 2 .
  • FIG. 3 illustrates the manner in which preliminary focusing lens 22 changes the azimuth transmission diagram.
  • Curve 24 in FIG. 3 reproduces the azimuthal angular distribution of the transmission gain of all four antenna elements together, in those instances where no preliminary focusing lens is present. Because of interference between the various antenna elements, one obtains only a relatively narrow principal maximum, which is restricted by zero positions 26 at approximately ⁇ 10°. As a result, only a relatively weak signal is obtained for objects at an azimuth angle in the vicinity of ⁇ 10°, which makes a precise determination of the azimuth angle more difficult.
  • curve 28 in FIG. 3 represents the angular distribution of the transmission gain for the radar sensor according to FIG. 1 , which has preliminary focusing lens 22 in addition to collective lens 20 . It can be seen that in this instance the principal maximum is considerably broadened and that first zero positions 30 first occur at approximately ⁇ 15°. As a result, more precise angular measurements in a greater angular range are possible.
  • preliminary focusing lens 22 is a cylindrical lens in the example illustrated, it predominantly affects the azimuth transmission diagram and to a lesser extent the elevation transmission diagram, which is shown in FIG. 4 .
  • curve 32 shown as thinner line represents the radar sensor without preliminary focusing lens
  • curve 34 represents the radar sensor including the preliminary focusing lens.
  • FIG. 5 illustrates the receiving diagram for an individual antenna element, i.e., antenna element 14 in FIG. 1 .
  • Curve 36 shows the receiving diagram for the radar sensor without preliminary focusing lens
  • curve 38 shows the diagram for the sensor including preliminary focusing lens 22 .
  • the first secondary minima 40 in the diagram with the preliminary focusing lens are less pronounced than in the diagram without preliminary focusing lens and that the first zero positions are located at a clearly greater distance from the main sensitivity direction.

Abstract

A multi-beam radar sensor has a plurality of antenna elements disposed next to each other, a collective lens situated at a distance in front of the antenna elements, and an additional preliminary focusing lens disposed in such a way that it affects only a portion of the radar radiation transmitted from, and/or received by, the antenna elements.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to a multi-beam radar sensor having a plurality of antenna elements situated next to each other, a collective lens disposed with distance in front of the antenna element, and an additional preliminary focusing lens, and the present invention also relates to a radar sensor having angular resolution for use in motor vehicles.
  • 2. Description of Related Art
  • The radar radiation emitted or received by the plurality of antenna elements disposed next to each other passes through the collective lens shared by all antenna elements and is bundled in this manner. However, because of the offset of the individual antenna elements in the lateral direction, the radar beams generated and/or received thereby are likewise angularly offset with respect to each other. If a reflective radar object is hit by multiple beams, then it is possible to determine, or at least estimate, the azimuth angle of the radar object on the basis of the amplitude and/or phase relation between the signals received by the various antenna elements.
  • The transmission characteristic of such a multi-beam radar sensor is a function of the geometry of the individual antenna elements and the optical characteristics of the collective lens, but is also affected by interference effects between the signals emitted by the different antenna elements.
  • From published Germany patent document DE 197 55 607, a radar sensor of the type mentioned in the introduction is known, in which a preliminary focusing lens is disposed in relatively close proximity in front of the antenna element(s). This preliminary focusing lens is dimensioned such that all of the radar radiation that also passes through the actual collective lens traverses it. The preliminary focusing lens is provided to enable a more compact design of the radar sensor.
  • In the case of a multi-beam sensor, it has also already been proposed to place a cylindrical lens on the planar inner side of the plano-convex collective lens, through which greater bundling than in the azimuth is obtained in the elevation.
    • BRIEF SUMMARY OF THE INVENTION
  • It is an object of the present invention to provide a multi-beam radar sensor having improved angular detection capabilities.
  • According to the present invention, this object is achieved in that, in a multi-beam radar sensor of the type described in the introduction, the preliminary focusing lens is disposed in such a way that it affects only a portion of the radiation transmitted and/or received by the antenna elements.
  • In particular, the preliminary focusing lens has the effect that a portion of the beams emitted by the four antenna elements is focused before striking the main lens. This brings about a change in the aperture occupancy behind the lens such that a broader principal maximum occurs in the azimuth diagram, so that the precision of the determination of the azimuth angle is improved. In a conventional radar sensor of the same design but without preliminary focusing lens, the principal maximum in the azimuth diagram has a width of only approximately 20° (zero positions at ±10°), so that greater variance and thus reduced precision results in the angle estimation at azimuth angles in the vicinity of ±10°. On the other hand, in the radar sensor according to the present invention the first zero positions are shifted outwardly to a considerable extent, i.e., to higher angles, thereby allowing the determination of the azimuth angle with a significantly lower variance.
  • The preliminary focusing lens may advantageously be disposed directly on the inner surface of the collective lens, e.g., a plano-convex lens. This allows a simple and cost-effective production.
  • Since basically only the azimuth diagram of the radar sensor is relevant for the angle measurement, the preliminary focusing lens may be designed as vertically oriented cylindrical lens.
    • BRIEF DESCRIPTION OF SEVERAL VIEWS OF THE DRAWING
  • FIG. 1 shows a schematic representation of a radar sensor according to the present invention.
  • FIG. 2 shows the radar sensor according to FIG. 1 in a schematic side view.
  • FIG. 3 shows an azimuth transmission diagram of the radar sensor according to the present invention.
  • FIG. 4 shows an elevation transmission diagram of the radar sensor.
  • FIG. 5 shows an azimuth receiving diagram for one of the beams of the radar sensor according to FIG. 1.
    •  DETAILED DESCRIPTION
  • The radar sensor shown in FIG. 1 has four antenna elements (patches) 12, 14, 16, 18 mounted on a shared mounting plate 10. Spaced at a distance to mounting plate 10 is a collective lens 20 such as an aplanatic plano-convex lens whose planar side faces mounting place 10, collective lens 20 having a refractive effect for radar radiation. The radiation emitted by all four antenna elements passes through collective lens 20 and is focused by it.
  • In the radar sensor examined in this instance by way of example, a monostatic antenna principle is realized, i.e., each antenna element 12 acts both as transmit antenna and as receiving antenna. As a consequence, the radiation reflected by a radar sensor, which radiation was emitted by a specific antenna element, is also refocused by collective lens 20 in the direction of the particular antenna element, where it is received.
  • Since antenna elements 12, 14, 16, 18 are uniformly offset with respect to each other in the horizontal direction, their principal radiation and sensitivity directions are angularly offset with respect to each other. As an example, the principal radiation and sensitivity direction of antenna element 14 in FIG. 1 is indicated by a straight line A, which passes through antenna element 14 and through the center of collective lens 20. It can be seen that straight line A forms a specific angle with the optical axis of collective lens 20. This applies analogously to the other antenna elements as well.
  • In addition, for antenna element 14, the angular range that is spanned by collective lens 20 is marked by two straight lines a1. The radiation emitted into this angular range therefore passes through collective lens 20 and is focused by it.
  • A plano-convex preliminary focusing lens (cylindrical lens) 22 is fixed in place on the planar inner side of collective lens 20 or is integrally formed with collective lens 20. This preliminary focusing lens 22 has a vertical orientation so that its profile is visible in the plan view of FIG. 1. The width of cylindrical lens 22 is considerably smaller than the diameter of collective lens 20, in particular less than one half of this diameter. Lines a2 mark an angular range for antenna element 14 spanned by preliminary focusing lens 22. This angular range is considerably smaller and lies completely within the angular range spanned by collective lens 20. As a result, only a portion of the radar radiation emitted by antenna elements 12 through 18 passes through cylindrical lens 22 while another portion of this radar radiation passes through via the regions of collective lens 20 that lie outside of cylindrical lens 22 and thus remains unaffected by the cylindrical lens.
  • As shown in FIG. 2, the height of preliminary focusing lens 22 in the vertical direction is also considerably smaller than the diameter of collective lens 20, in particular less than one half of this diameter.
  • Preliminary focusing lens 22 causes preliminary focusing of the radar beams for each antenna element 12 through 18, for the particular central angular range a2.
  • The azimuthal angular distribution of the radar radiation jointly emitted by all four antenna elements, generally known as azimuth diagram, is affected by interference between the signals that are emitted by the individual antenna elements. FIG. 3 illustrates the manner in which preliminary focusing lens 22 changes the azimuth transmission diagram.
  • Curve 24 in FIG. 3, represented as thinner lines, reproduces the azimuthal angular distribution of the transmission gain of all four antenna elements together, in those instances where no preliminary focusing lens is present. Because of interference between the various antenna elements, one obtains only a relatively narrow principal maximum, which is restricted by zero positions 26 at approximately ±10°. As a result, only a relatively weak signal is obtained for objects at an azimuth angle in the vicinity of ±10°, which makes a precise determination of the azimuth angle more difficult.
  • On the other hand, curve 28 in FIG. 3, drawn as a bolder line, represents the angular distribution of the transmission gain for the radar sensor according to FIG. 1, which has preliminary focusing lens 22 in addition to collective lens 20. It can be seen that in this instance the principal maximum is considerably broadened and that first zero positions 30 first occur at approximately ±15°. As a result, more precise angular measurements in a greater angular range are possible.
  • Since preliminary focusing lens 22 is a cylindrical lens in the example illustrated, it predominantly affects the azimuth transmission diagram and to a lesser extent the elevation transmission diagram, which is shown in FIG. 4. Here as well, curve 32 shown as thinner line represents the radar sensor without preliminary focusing lens, and curve 34 represents the radar sensor including the preliminary focusing lens.
  • FIG. 5 illustrates the receiving diagram for an individual antenna element, i.e., antenna element 14 in FIG. 1. Curve 36 shows the receiving diagram for the radar sensor without preliminary focusing lens, and curve 38 shows the diagram for the sensor including preliminary focusing lens 22. Here, too, it can be seen that the first secondary minima 40 in the diagram with the preliminary focusing lens are less pronounced than in the diagram without preliminary focusing lens and that the first zero positions are located at a clearly greater distance from the main sensitivity direction.

Claims (7)

1. A multi-beam radar sensor, comprising:
a plurality of antenna elements situated next to each other;
a collective lens situated at a distance in front of the antenna elements; and
an additional preliminary focusing lens positioned between the antenna elements and the collective lens, wherein the preliminary focusing lens is arranged to affect only a portion of radar radiations at least one of transmitted from and received by the antenna elements.
2. The multi-beam radar sensor as recited in claim 1, wherein the preliminary focusing lens is affixed directly on the collective lens.
3. The multi-beam radar sensor as recited in claim 2, wherein the collective lens is a plano-convex lens having a planar side facing the antenna elements, and wherein the preliminary focusing lens is fixed in place on the planar side of plano-convex lens.
4. The multi-beam radar sensor as recited in claim 3, wherein the preliminary focusing lens is a vertically oriented cylindrical lens.
5. The multi-beam radar sensor as recited in claim 3, wherein the width of the preliminary focusing lens is less than one half of the diameter of the collective lens.
6. The multi-beam radar sensor as recited in claim 4, wherein the height of the preliminary focusing lens is less than one half of the diameter of the collective lens.
7. The multi-beam radar sensor as recited in claim 5, wherein the height of the preliminary focusing lens is less than one half of the diameter of the collective lens.
US12/384,873 2008-04-30 2009-04-08 Multi-beam radar sensor Active 2029-09-23 US7961140B2 (en)

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DE102008001467 2008-04-30
DE102008001467A DE102008001467A1 (en) 2008-04-30 2008-04-30 Multibeam radar sensor
DE102008001467.2 2008-04-30

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2546309A (en) * 2016-01-15 2017-07-19 Cambridge Broadband Networks Ltd An Antenna
US11482770B2 (en) * 2019-02-04 2022-10-25 Vega Grieshaber Kg Antenna arrangement
US11552405B1 (en) * 2018-09-21 2023-01-10 Apple Inc. Lens structure

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007036262A1 (en) * 2007-08-02 2009-02-05 Robert Bosch Gmbh Radar sensor for motor vehicles
DE102009047561A1 (en) * 2009-12-07 2011-06-09 Robert Bosch Gmbh Antenna device for a radar sensor device
US8854257B2 (en) * 2012-10-22 2014-10-07 The United States Of America As Represented By The Secretary Of The Army Conformal array, luneburg lens antenna system
JP2014115155A (en) * 2012-12-07 2014-06-26 National Univ Corp Shizuoka Univ Onboard radar using lens antenna
JP2014182023A (en) * 2013-03-19 2014-09-29 National Univ Corp Shizuoka Univ On-vehicle radar system
JP6838250B2 (en) * 2017-06-05 2021-03-03 日立Astemo株式会社 Antennas, array antennas, radar devices and in-vehicle systems
JP6760320B2 (en) * 2018-03-15 2020-09-23 オムロン株式会社 Photodetector, photodetection method and optical ranging sensor
CN113376612B (en) * 2021-08-12 2021-11-23 成都众享天地网络科技有限公司 Radar clutter generation method based on terrain matrixing and detection

Citations (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3380052A (en) * 1965-10-15 1968-04-23 Thomson Houston Comp Francaise Multibeam antenna system
US3713163A (en) * 1971-11-22 1973-01-23 Nasa Plural beam antenna
US3715749A (en) * 1971-05-11 1973-02-06 Raytheon Co Multi-beam radio frequency system
US3754270A (en) * 1972-03-24 1973-08-21 Raytheon Co Omnidirectional multibeam array antenna
US3936835A (en) * 1974-03-26 1976-02-03 Harris-Intertype Corporation Directive disk feed system
US3953858A (en) * 1975-05-30 1976-04-27 Bell Telephone Laboratories, Incorporated Multiple beam microwave apparatus
US3979754A (en) * 1975-04-11 1976-09-07 Raytheon Company Radio frequency array antenna employing stacked parallel plate lenses
US3984840A (en) * 1975-07-17 1976-10-05 Hughes Aircraft Company Bootlace lens having two plane surfaces
US4080605A (en) * 1976-08-26 1978-03-21 Raytheon Company Multi-beam radio frequency array antenna
US4127857A (en) * 1977-05-31 1978-11-28 Raytheon Company Radio frequency antenna with combined lens and polarizer
US4187507A (en) * 1978-10-13 1980-02-05 Sperry Rand Corporation Multiple beam antenna array
US4288795A (en) * 1979-10-25 1981-09-08 The United States Of America As Represented By The Secretary Of The Navy Anastigmatic three-dimensional bootlace lens
US4408205A (en) * 1981-06-25 1983-10-04 International Telephone And Telegraph Corporation Multiple beam antenna feed arrangement for generating an arbitrary number of independent steerable nulls
US4458249A (en) * 1982-02-22 1984-07-03 The United States Of America As Represented By The Secretary Of The Navy Multi-beam, multi-lens microwave antenna providing hemispheric coverage
US4523198A (en) * 1983-07-07 1985-06-11 The United States Of America As Represented By The Secretary Of The Air Force Radio frequency lens antenna
US4558324A (en) * 1983-07-07 1985-12-10 The United States Of America As Represented By The Secretary Of The Air Force Multibeam lens antennas
US4845507A (en) * 1987-08-07 1989-07-04 Raytheon Company Modular multibeam radio frequency array antenna system
US5047776A (en) * 1990-06-27 1991-09-10 Hughes Aircraft Company Multibeam optical and electromagnetic hemispherical/spherical sensor
US5206658A (en) * 1990-10-31 1993-04-27 Rockwell International Corporation Multiple beam antenna system
US5703603A (en) * 1994-04-28 1997-12-30 Tovarischestvo S Ogranichennoi Otvetstvennostju "Konkur" Multi-beam lens antenna
US5909191A (en) * 1991-06-12 1999-06-01 Space Systems/Loral, Inc. Multiple beam antenna and beamforming network
US5933109A (en) * 1996-05-02 1999-08-03 Honda Giken Kabushiki Kaisha Multibeam radar system
US5949365A (en) * 1997-04-09 1999-09-07 Robert Bosch Gmbh Multiple-beam radar system
US6018316A (en) * 1997-01-24 2000-01-25 Ail Systems, Inc. Multiple beam antenna system and method
US6043772A (en) * 1996-11-21 2000-03-28 Robert Bosch Gmbh Multi-beam automobile radar system
US6087999A (en) * 1994-09-01 2000-07-11 E*Star, Inc. Reflector based dielectric lens antenna system
US6107897A (en) * 1998-01-08 2000-08-22 E*Star, Inc. Orthogonal mode junction (OMJ) for use in antenna system
US6107956A (en) * 1997-11-21 2000-08-22 Raytheon Company Automotive forward looking sensor architecture
US6107955A (en) * 1997-05-10 2000-08-22 Robert Bosch Gmbh Radar sensor for a vehicle
US6147656A (en) * 1999-04-01 2000-11-14 Space Systems/Loral, Inc. Active multiple beam antennas
US6160520A (en) * 1998-01-08 2000-12-12 E★Star, Inc. Distributed bifocal abbe-sine for wide-angle multi-beam and scanning antenna system
US6414631B1 (en) * 1999-06-10 2002-07-02 Nec Corporation Time sharing type multi-beam radar apparatus having alternately arranged transmitting antennas and receiving antennas
US6424319B2 (en) * 1999-11-18 2002-07-23 Automotive Systems Laboratory, Inc. Multi-beam antenna
US6462700B1 (en) * 1999-10-06 2002-10-08 Robert Bosch Gmbh Asymmetrical multi-beam radar sensor
US6480167B2 (en) * 2001-03-08 2002-11-12 Gabriel Electronics Incorporated Flat panel array antenna
US6590544B1 (en) * 1998-09-01 2003-07-08 Qualcomm, Inc. Dielectric lens assembly for a feed antenna
US6606077B2 (en) * 1999-11-18 2003-08-12 Automotive Systems Laboratory, Inc. Multi-beam antenna
US6614404B1 (en) * 1999-08-21 2003-09-02 Robert Bosch Gmbh Multibeam radar sensor with a fixing device for a focusing body
US6774862B2 (en) * 2002-05-17 2004-08-10 Mitsubishi Denki Kabushiki Kaisha Multibeam antenna apparatus
US20050012655A1 (en) * 1992-09-11 2005-01-20 Ball Corporation Electronically agile multi-beam antenna system
US7205950B2 (en) * 2003-06-05 2007-04-17 Sumitomo Electric Industries, Ltd. Radio wave lens antenna
US7358913B2 (en) * 1999-11-18 2008-04-15 Automotive Systems Laboratory, Inc. Multi-beam antenna
US7411542B2 (en) * 2005-02-10 2008-08-12 Automotive Systems Laboratory, Inc. Automotive radar system with guard beam
US7605768B2 (en) * 1999-11-18 2009-10-20 TK Holdings Inc., Electronics Multi-beam antenna
US7786928B2 (en) * 2004-09-13 2010-08-31 Robert Bosch Gmbh Monostatic planar multi-beam radar sensor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4128995C2 (en) * 1991-08-31 1999-07-29 Hella Kg Hueck & Co Signal light for motor vehicles
DE19755607A1 (en) 1997-02-06 1998-08-13 Bosch Gmbh Robert Microwave antenna arrangement for a motor vehicle radar system
DE102007036262A1 (en) 2007-08-02 2009-02-05 Robert Bosch Gmbh Radar sensor for motor vehicles

Patent Citations (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3380052A (en) * 1965-10-15 1968-04-23 Thomson Houston Comp Francaise Multibeam antenna system
US3715749A (en) * 1971-05-11 1973-02-06 Raytheon Co Multi-beam radio frequency system
US3713163A (en) * 1971-11-22 1973-01-23 Nasa Plural beam antenna
US3754270A (en) * 1972-03-24 1973-08-21 Raytheon Co Omnidirectional multibeam array antenna
US3936835A (en) * 1974-03-26 1976-02-03 Harris-Intertype Corporation Directive disk feed system
US3979754A (en) * 1975-04-11 1976-09-07 Raytheon Company Radio frequency array antenna employing stacked parallel plate lenses
US3953858A (en) * 1975-05-30 1976-04-27 Bell Telephone Laboratories, Incorporated Multiple beam microwave apparatus
US3984840A (en) * 1975-07-17 1976-10-05 Hughes Aircraft Company Bootlace lens having two plane surfaces
US4080605A (en) * 1976-08-26 1978-03-21 Raytheon Company Multi-beam radio frequency array antenna
US4127857A (en) * 1977-05-31 1978-11-28 Raytheon Company Radio frequency antenna with combined lens and polarizer
US4187507A (en) * 1978-10-13 1980-02-05 Sperry Rand Corporation Multiple beam antenna array
US4288795A (en) * 1979-10-25 1981-09-08 The United States Of America As Represented By The Secretary Of The Navy Anastigmatic three-dimensional bootlace lens
US4408205A (en) * 1981-06-25 1983-10-04 International Telephone And Telegraph Corporation Multiple beam antenna feed arrangement for generating an arbitrary number of independent steerable nulls
US4458249A (en) * 1982-02-22 1984-07-03 The United States Of America As Represented By The Secretary Of The Navy Multi-beam, multi-lens microwave antenna providing hemispheric coverage
US4523198A (en) * 1983-07-07 1985-06-11 The United States Of America As Represented By The Secretary Of The Air Force Radio frequency lens antenna
US4558324A (en) * 1983-07-07 1985-12-10 The United States Of America As Represented By The Secretary Of The Air Force Multibeam lens antennas
US4845507A (en) * 1987-08-07 1989-07-04 Raytheon Company Modular multibeam radio frequency array antenna system
US5047776A (en) * 1990-06-27 1991-09-10 Hughes Aircraft Company Multibeam optical and electromagnetic hemispherical/spherical sensor
US5206658A (en) * 1990-10-31 1993-04-27 Rockwell International Corporation Multiple beam antenna system
US5909191A (en) * 1991-06-12 1999-06-01 Space Systems/Loral, Inc. Multiple beam antenna and beamforming network
US20050012655A1 (en) * 1992-09-11 2005-01-20 Ball Corporation Electronically agile multi-beam antenna system
US5703603A (en) * 1994-04-28 1997-12-30 Tovarischestvo S Ogranichennoi Otvetstvennostju "Konkur" Multi-beam lens antenna
US6087999A (en) * 1994-09-01 2000-07-11 E*Star, Inc. Reflector based dielectric lens antenna system
US6137434A (en) * 1996-05-02 2000-10-24 Honda Giken Kogyo Kabushiki Kaisha Multibeam radar system
US5933109A (en) * 1996-05-02 1999-08-03 Honda Giken Kabushiki Kaisha Multibeam radar system
US6043772A (en) * 1996-11-21 2000-03-28 Robert Bosch Gmbh Multi-beam automobile radar system
US6018316A (en) * 1997-01-24 2000-01-25 Ail Systems, Inc. Multiple beam antenna system and method
US5949365A (en) * 1997-04-09 1999-09-07 Robert Bosch Gmbh Multiple-beam radar system
US6107955A (en) * 1997-05-10 2000-08-22 Robert Bosch Gmbh Radar sensor for a vehicle
US6107956A (en) * 1997-11-21 2000-08-22 Raytheon Company Automotive forward looking sensor architecture
US6107897A (en) * 1998-01-08 2000-08-22 E*Star, Inc. Orthogonal mode junction (OMJ) for use in antenna system
US6160520A (en) * 1998-01-08 2000-12-12 E★Star, Inc. Distributed bifocal abbe-sine for wide-angle multi-beam and scanning antenna system
US6590544B1 (en) * 1998-09-01 2003-07-08 Qualcomm, Inc. Dielectric lens assembly for a feed antenna
US6147656A (en) * 1999-04-01 2000-11-14 Space Systems/Loral, Inc. Active multiple beam antennas
US6414631B1 (en) * 1999-06-10 2002-07-02 Nec Corporation Time sharing type multi-beam radar apparatus having alternately arranged transmitting antennas and receiving antennas
US6614404B1 (en) * 1999-08-21 2003-09-02 Robert Bosch Gmbh Multibeam radar sensor with a fixing device for a focusing body
US6462700B1 (en) * 1999-10-06 2002-10-08 Robert Bosch Gmbh Asymmetrical multi-beam radar sensor
US7358913B2 (en) * 1999-11-18 2008-04-15 Automotive Systems Laboratory, Inc. Multi-beam antenna
US6606077B2 (en) * 1999-11-18 2003-08-12 Automotive Systems Laboratory, Inc. Multi-beam antenna
US6424319B2 (en) * 1999-11-18 2002-07-23 Automotive Systems Laboratory, Inc. Multi-beam antenna
US7605768B2 (en) * 1999-11-18 2009-10-20 TK Holdings Inc., Electronics Multi-beam antenna
US7800549B2 (en) * 1999-11-18 2010-09-21 TK Holdings, Inc. Electronics Multi-beam antenna
US6480167B2 (en) * 2001-03-08 2002-11-12 Gabriel Electronics Incorporated Flat panel array antenna
US6774862B2 (en) * 2002-05-17 2004-08-10 Mitsubishi Denki Kabushiki Kaisha Multibeam antenna apparatus
US7205950B2 (en) * 2003-06-05 2007-04-17 Sumitomo Electric Industries, Ltd. Radio wave lens antenna
US7786928B2 (en) * 2004-09-13 2010-08-31 Robert Bosch Gmbh Monostatic planar multi-beam radar sensor
US7411542B2 (en) * 2005-02-10 2008-08-12 Automotive Systems Laboratory, Inc. Automotive radar system with guard beam

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2546309A (en) * 2016-01-15 2017-07-19 Cambridge Broadband Networks Ltd An Antenna
GB2546309B (en) * 2016-01-15 2020-03-18 Cambridge Broadband Networks Ltd An Antenna
US11552405B1 (en) * 2018-09-21 2023-01-10 Apple Inc. Lens structure
US11482770B2 (en) * 2019-02-04 2022-10-25 Vega Grieshaber Kg Antenna arrangement

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US7961140B2 (en) 2011-06-14
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EP2113966A1 (en) 2009-11-04

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